I've just bought a 2003 model & after lowering it I'm having fun with it. Only problem so far is the vibration in the handle bars. Up to 50 mph it's not bad, but above that the vibration starts to make my hands numb. I put some weights into the end of the handle bars which helped a little. I've ordered some Grip Puppies also. If these don't help out I'm thinking I might have to get some different handle bars. Anyone have some different solutions. I know it's a single & it's probably impossible to eliminate all the vibration.